The purpose of the study is to evaluate neural activity from Br to FPL transfer recipients after conventional therapy and in response to an additional task-based training home program that aims to improve voluntary activation of the transferred Br in functional pinch tasks. The 10-week training program is under evaluation in RRD Pilot (B0583P) study and includes producing pinch force in different upper limb postures, biofeedback from a pinch dynamometer, and practicing selected pinch tasks. The investigators anticipate that increases in the amplitude and distribution of fMRI blood oxygen level dependent (BOLD) responses in sensorimotor cortices will underlie improved motor control post-surgically and following successful intervention to promote motor relearning.